Padlock and chain



G. BRAD-FORD. PADLooK'AND GHAIN.

(No Model.)

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Z W. 3/ J? UNITED' STATES PATENT FFLCEO GAMALIEL BRADFORD, OF CAMBRIDGE, ASSIGNOR TO THE AMES SVORD COMPANY, OF CHIOOPEE, MASSAOHUSETTS.

PADLOCK AND CHAIN.

SPECIPICATION forming part of Letters Patent No. 373,218, dated November 15, 1887.

Application filed April 2, 1887. Serial No. 233,387.

To aZZ whom it may concern: i

Be it known that I, GAMALIE'L BADFORD, of Cambridge, county of Middlesex, State of Massachusetts, haveinvented an Improvement in Padlocks and Chains, ofwhichthe following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts. My in vention relates to a padlock and chain ro suitable foizholding a bunch of keys or for other similar use, the lock' being constructed to hold securely and adapted to be unlocked by a common pin. The bow of'the padlock is provided vwith an eye,to which one end of the chain is attached, and thebow is fastened by a spring catch or tumbler pivoted in the lockcase in such position as to be operated by a common pin or a piece of slender wire inserted through a suitable opening in the edge 2a of the case.

The invention consists in a padlock and chain constructed and arranged to operate substantially as l will now proceed to more particularly set forth and claim.

Figure l is a side view of a padlock and chain embodying this invention; Fig. 2, aside view of the lock with the side of the case removed; and Fig. 3, a longitudinal section of the case, Fig. 2 and 3 being on a larger scale 3G than Fig. l.

The lock comprises a case, a, and a bow, 1),'

of keysfiand is provided at its other end with a ring, g', through which the bow b of the lock may be passed to fasten the said articles on the chain.

The case a of the lock is shown as made in two parts, one of which is provided with an' annular flange, a', having suitable no'tches for the bow, and the other of which parts is fastened down upon the said flange by a pin or rivet, a, as shown in Fig. 3. The sides of the case are bored part way through at three points to form bearings for pins c, h, and i,

(No model.)

end ofV the bow b, and bears against a projecting finger, f', on the catch or tumblerf, tending to throw the said catch into engageinent with the shoulder al.v and-also tending to throw the bow b outward from the case as soon as it is disengaged from the catch.

The fiange a' of the case is provided with a pin-hole, aa, and the lower part of the catch or tumblerf projects inward over said pinhole, as shown at3, so that a pin or similar piece of wire inserted through the said hole a? will bear against the said .portion f3 of the tumbler, and by slightly rocking the said pin it will pry the tumbler over against the pressure of the spring la on the fingerf', and thus release the catch or shoulder d, as shown in dotted lines, Fig. 2.

The pivoted end of the bow b is made substantially circular, so asto fill the notch in the fiange ofthe case and prevent entrance of dust,

and the said circular portion is provided with a v shoulder, ba, constituting a stop that limits the outward movementv of the bow. The said hub portion of the bow b is also provided with a projection, bt, that co operates with the upper part of the tumbler f, which is curved, as shown at ft, so as to permit the said projection b4 to pass over it when the tumber f has been turned aside to disengage the shoulder d. The said projection b4 holds the tumblerj: back when the bow Z) is turned outward, and thus facilitates the passage of .the shouldered end d of the bow past the tumbler when the bow is pressed back into the case. Without this projection b4 and co-operatingseat on the go tumbler, the end of the latter might be thrown forward so far as to prevent the ready entrance of the shouldered end d into the look-case.

While the lock is very small and ornamental in appearance, it is strong and positive in action and not likely to get out of order. The tumbler and bow may both be cut from sheet metal and both Aof the same thickness and equal to the depth to which the main part of the case a is bored.

IOO

I ckLi x11- rlhe Chain (j, combined With the bow Z), having the eye b', in which one end of the chain is secured, the other and free end of the ehain 5 being engaged and disengaged at pleasure with t'he free end of the how, the catch f to engage and release the bow, and a case containing the catch and receiving and securing the bow,and provided with an opening for the insertion of 1 an independent or separate pin to operate the ro catch, substantially as described.

In tesbimonywhereof Ihave signed my name to this specification in the presence oftwo subseribing wibnesses.

GAMALIEL BRADFORD. Vitnesses:

J os. P. LIVERMORE, J As. J. MALONEY. 

